Title of article :
Sorption, degradation and mobility of microcystins in Chinese agriculture soils: risk assessment for groundwater protection
Author/Authors :
Wei Chen، نويسنده , , Lirong Song ، نويسنده , , Nanqin Gan، نويسنده , , Lin Li، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
7
From page :
752
To page :
758
Abstract :
In the present paper, sorption, persistence, and leaching behavior of three microcystin variants in Chinese agriculture soils were examined. Based on this study, the values of capacity factor and slope for three MCs variants in three soils ranged from 0.69 to 6.00, and 1.01 to 1.54, respectively. The adsorption of MCs in the soils decreased in the following order: RR>Dha7 LR>LR. Furthermore, for each MC variant in the three soils, the adsorption rate in the soils decreased in the following order: soil A>soil C>soil B. The calculated half-time ranged between 7.9 and 17.8 days for MC-RR, 6.0–17.1 days for MC-LR, and 7.1–10.2 days for MC-Dha7 LR. Results from leaching experiments demonstrated that recoveries of toxins in leachates ranged from 0–16.7% for RR, 73.2–88.9% for LR, and 8.9–73.1% for Dha7 LR. The GUS value ranged from 1.48 to 2.06 for RR, 1.82–2.88 for LR, and 1.76–2.09 for Dha7 LR. Results demonstrated the use of cyanobacterial collections as plant fertilizer is likely to be unsafe in soils.
Keywords :
Microcystin , sorption , soils , groundwater protection , Leaching behavior , risk assessment , Persistence , Plant fertilizer
Journal title :
ENVIRONMENTAL POLLUTION
Serial Year :
2006
Journal title :
ENVIRONMENTAL POLLUTION
Record number :
730847
Link To Document :
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